Interactive
Space Telescope Science Institute

Amazing Space: Star Light, Star Bright

For Students 6th - 8th
An online exploration where students learn the basics about light and the properties of waves and the electromagnetic spectrum. Students will also learn how to measure wavelength and frequency so they can understand the electromagnetic...
Graphic
Space Telescope Science Institute

Amazing Space: Star Light Star Bright: Electromagnetic Radiation

For Students 9th - 10th
Use this tool to learn facts about the range of the electromagnetic spectrum, from radio waves to gamma rays.
Activity
University of California

Interactive Extreme Ultraviolet Skymap

For Students 9th - 10th
A map showing a view of the night sky is given; sources of extreme ultraviolet light are marked. Visitors analyze the spectrum from these parts of the sky and attempt to determine which star type the spectrum most closely resembles.
Website
Other

Sky Server: Color

For Students 6th - 8th
SkyServer answers why stars have different colors and shows what you can learn by studying the colors of stars, galaxies, and other objects.
Lesson Plan
PBS

Pbs Teachers: The Dark Side of the Universe: Doppler Shift [Pdf]

For Teachers 3rd - 8th
Investigate how astronomers detect movements of stars by studying the Doppler effect on the star's light spectrum. Construct a model that illustrates this concept underlying red shift.